Opposing marchers from left and right kept apart by police as Chris Kaba’s family hand in note to Downing Street

Three protest marches converged on Whitehall on Saturday as anti-racist activists, relatives of people who died in custody, and supporters of the far-right figure Tommy Robinson held separate demonstrations.

Thousands of Robinson followers were divided from a counter-protest of Stand Up to Racism supporters by barriers, stages and lines of police officers.